CVE-2026-84186
MediumCVSS 6.9Exploitation Probability (EPSS)
Low risk28th percentile - higher than 28% of all known CVEs
Summary
Vulnerability involving incorrect access control in the Tools::getRemoteAddr() function in PrestaShop, which allows the client’s IP address to be spoofed via the X-Forwarded-For header when the application is running behind a reverse proxy, load balancer or CDN. The application incorrectly processes the IP address string and uses the address controlled by the visitor rather than the one provided by the trusted infrastructure, allowing an unauthenticated remote attacker to cause the application to interpret their connection as originating from an arbitrary IP address.
Risk Assessment
An attacker can bypass IP-based controls, such as the maintenance mode allowlist, forge security and audit logs, and evade third-party mechanisms that rely on IP address, such as geolocation checks, fraud detection or request throttling.
Recommendation
It is recommended to upgrade PrestaShop to a patched version and configure trusted proxies to overwrite the X-Forwarded-For header.
Other vulnerabilities in PrestaShop
See all- CVE-2023-45379Critical
In the "Rotator Img" module (posrotatorimg) for PrestaShop in versions at least up to 1.1 from PosThemes, an unauthenticated user can perform an SQL injection attack.
- CVE-2023-39526Critical
PrestaShop is an open source e-commerce application that is vulnerable to remote code execution through SQL injection and arbitrary file write in the back office in versions prior to 1.7.8.10, 8.0.5, and 8.1.1.
- CVE-2026-50986High
PrestaShop module totadministrativemandate versions below 1.8.1 are vulnerable to Cross-Site Request Forgery (CSRF). The payment validation controller lacks a CSRF token, allowing an attacker to confirm an order in awaiting status by hijacking a link.
- CVE-2026-14846Medium
In PrestaShop 8.2.1, a vulnerability exists due to improper sanitization of the 'Alias' parameter in the 'Update your address' function. An attacker can inject malicious expressions that are executed when data is exported using the 'Get my data in CSV' tool.
- CVE-2025-25692Medium
A PHAR deserialization vulnerability in the _getHeaders function of PrestaShop v8.2.0 allows attackers to execute arbitrary code via a crafted POST request.
- CVE-2025-25691Medium
A PHAR deserialization vulnerability in the /themes/import component of PrestaShop v8.2.0 allows attackers to execute arbitrary code via a crafted POST request.
- CVE-2023-39529Medium
PrestaShop prior to version 8.1.1 allows for file deletion from the server using the Attachments controller and the Attachments API. Version 8.1.1 contains a patch for this issue.
- CVE-2023-39528Medium
PrestaShop prior to version 8.1.1 contained the `displayAjaxEmailHTML` method that could be exploited to read any file on the server, potentially even outside of the project if the server is not correctly configured.
- CVE-2023-39527High
PrestaShop, as an open-source e-commerce application, is vulnerable to cross-site scripting (XSS) attacks through the `isCleanHTML` method in versions prior to 1.7.8.10, 8.0.5, and 8.1.1. Versions 1.7.8.10, 8.0.5, and 8.1.1 contain a patch.
- CVE-2023-39525Medium
PrestaShop prior to version 8.1.1 has a vulnerability in the back office that allows file compromise through a path traversal attack. This can be achieved by replaying the import file deletion query with a specified file path that exploits this vulnerability.
Original NVD description (English source)
Vulnerability involving incorrect access control in the Tools::getRemoteAddr() function in PrestaShop, which allows the client’s IP address to be spoofed via the X-Forwarded-For header when the application is running behind a reverse proxy, load balancer or CDN. The application incorrectly processes the IP address string and uses the address controlled by the visitor rather than the one provided by the trusted infrastructure, allowing an unauthenticated remote attacker to cause the application to interpret their connection as originating from an arbitrary IP address. This condition allows IP-based controls, such as the maintenance mode allowlist, to be bypassed, as well as enabling the forgery of security and audit logs and the evasion of third-party mechanisms that rely on the IP address, such as geolocation checks, fraud detection or request throttling.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS